Fast decomposition of food waste to produce mature and stable compost

Abstract

Food waste can be meat, fish, cooked food scraps, moldy bread, bone scraps, cakes, expired foods, dairy products, fruits and vegetables. Food waste which is put into the trash will decay and produce a foul odor which in turn will invite flies and cause potentially diseases. Most of the food waste that is processed using the composting process needs to spend a relatively long time, which is about 1-3 months or even 6-12 months. This study aims to accelerate composting time through the addition of additive microorganisms in various quantities. Four aerobic composter reactors were utilized in this study. Variations of additive microorganisms added to the research object were 0 in reactor (control), 8 g in B2 reactor, 16 g in B3 reactor, and 32 g in B4 reactor. All reactors were added with dolomite lime. During the composting process temperature, pH, water content and macroelement were tested. The results showed that the mature and stable compost was reached on the seventh day and produced from B2 reactor. In That reactor treated food waste and additive microorganisms with a ratio of 7:3, and 1 g dolomite lime. The level of C/N ratio produced from B2 reactor was 16.71. The value of C/N ratio was better than B3 reactor which produced C/N of 18.37. The control reactor produced a C/N ratio of 21.84 and mature and stable compost was reached on the 14th day. All in all, this study was regarded to be successful in accelerating the degradation of food waste into mature and stable compost in just seven days.

Influence of Physico-Chemical and Bioactivators for Composting of Traditional Market Vegetable Waste

“…The main control parameter for the activity of microbes during the breakdown of organic matter was temperature. The composting process will operate at its optimum if the temperature necessary for the growth of microorganisms was reached (Priyambada & Wardana, 2018).…”

Characterization of composting process and chemical composition of compost from recycling centers in Surabaya City, Indonesia

“…Suggest a minimum of 54 days (Lamourou et al, 2023). Alternatively, propose that compost maturity can be accelerated to just 30 days by adding a bioactivator with a C/N ratio indicator of < 17 to the biomass (Priyambada & Wardana, 2018). The compost produced by both recycling centers meets the standards for compost from domestic organic waste specified in SNI 19-7030-2004 regarding nutrient content and heavy metal concentrations.…”

The Effect of Eco-Enzyme Spraying on Suwung Landfill Waste, Denpasar, on Changes in Leachate Characteristics

“…The higher the temperature, the more oxygen consumption and the faster the decomposition process. If the optimum temperature of microorganisms is reached, the composting process will run optimally as well (38). The presence of temperature changes indicates if the organic matter passes through the stages of mesophilic, thermophilic, cooling, and maturation (38)(39).…”

“…Microorganisms play an important role in decomposition because their enzymes break down organics into smaller and more stable matter (39). The increase in temperature is an indicator of the active activity of microorganisms in decomposing organic matter (38). Six common bio-activators are used to speed up the decomposition process and obtain mature and quality decomposition results.…”